Music-leaf turner.



D. FUNK.

MUSIC LEAF TURNBR.`

APPLxoATIoN FILED 5111111.18, 1912.

uoLuMnlA PLANDGRAPH c0.,wAsmNuToN, D.

DAVID FUNK, 0F `NEW YORK, N. Y.

MUSIC-LEAF TURNER.

Specicaton of Letters Patent.

Patented May 12, 1914;.

Application filed September 18, 1912. Serial No. 721,028.

To all whom t may concern Be it known vthat I, DAVID FUNK, a citizen of the United States, and resident of the city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Music-Leaf Turners, of which the following is a specication'.

The present invention relates to an improvement in music-leaf turners, and has for one of its objects to provide a simple and inexpensive device of this character by means of which the leaves of a music pamphlet on music-holders are adapted to be turned, one after the other, inaneffective and positive manner.`

Another object of the invention is to provide a device of this type which is capable of manufacture on a commercial scale, or in other words which is not so difficult to produce as to be beyond the reasonable cost of such an article.

IVith these and other objects in view, which will more fully appear as the nature of the invention is better understood, the

same consists in the combination, arrangement and construction of parts hereinafter fully described, pointed out in the appended claims and illustrated in the accompanying drawings, it being understood that many changes may be made in the size and proportion of the several parts and minor details of construction within the scope of the appended claim without departing from the spirit or sacrificing any of the advantages of the invention.

One of the many possible embodiments of the invention is illustrated in the accompanying drawings, in which Figure 1 is a front elevation of a musicleaf turner constructed in accordance with the present invention; Fig. 2 is a section taken on line 2 2 of Fig. 1; Fig. 3 is a plan view, partly in section of a detail of construction; and Fig. 4 is a front elevation of another detail.

In the dra-wings, the numeral 1() indicates a music rack, which is carried by a standard 11, the latter being supported by legs 12, 12. The music rack is of the folding type and of a construction which corresponds substantially to those heretofore in use. More particularly,l it comprises two base strips 13, 13, which are pivoted at 14, 1/1 to the standard 11, to the standard being also pivoted at 15 and 16 lateral strips 17 Aand' 18,` which are pivotally connected by means of end strips 19 lto the base strips 13.

vThe base strips 13 are provided with horizontal sections 20.

The turning mechanism comprises a vertical shaft 20, which is journaled in bearings 21, 21 attached to the standard 11, and furthermore in a step bearing 22, preferably made integral with the legs 12, 12. This shaft is under the tensionv of a spring 23, which bears against the standard 11 at one of its ends, its other end being attached to Vthe shaft v2O, for a purpose hereinafter to be described. The shaft 2O is provided with reduced portions 24 andV 25, which are engaged by ring shaped keepers 26 and 27, to

which are attached the. turning arms 28. In the drawings there are shown three turning arms, each arm being provided with two or more clamps 29, 29, or similar devices which are adapted to engage the sheets of the pamphlet. The clamps 29 are shown diagrammatically in the drawings. The lower ends of the turning arms 28 are bent outward, as clearly shown at 30, and are provided upon their inwardly bent portions 31 with rings 32, which are drawn over the lshaft 20. The rings 26, 27 and 32 are loosely lmounted upon the shaft, permitting thereby of a relative oscillating movement between said shaft and the rings, or in other words between said shaft and the turning arms 2S.

rIhe length of the turning arm, which is located at the extreme right, is longer than the next adjacent one to the left of it, and this, in turn, is longer than the one still farther to the left of it, so that no matter how many turning arms may be employed, they gradually diminish from the eXtreme right to the left, as clearly shown in Fig. 1 of the drawings. That arm which is at the extreme left is to be turned first, and it being the smallest, it will not interfere with the others. In a similar manner are formed the outwardly bent portions 30.

A block 33, attached to the shaft 20, is normally arranged within the outwardly bent portion 30 and the inwardly bent section 31 of the eXtreme left turning arm. To this block is secured at 34: a spring 35, eX- tending substantially around the block 33 and being guided in its movement by an eye 33 upon the block 33. The spring 35 is provided with a bend 36, in which is normally seatedthe outwardly bent portion 30 of the eXtreme left turning arm 28, so that, when the shaft is given a turning movement, the turning arm 2S, which is engaged by the spring', will move with the said shaft from the position shown in Fig. 1 of the drawings to the left. The means for turning or rotating the shaft 2O comprises a pulley 37 fiXedly attached to the shaft 20, to the said pulley being secured a rope or belt 38, running over a sheave 39, which is rotatably carried by a bracket 40, the latter being attached to the legs 12. The lower end of the rope or belt 8S is fastened to a treadle 41, which is pivoted at 42 to one of the legs 12. lt is obvious that, in forcing the outer end of the treadle downward, a turning movement will be given to the shaft 20, whereby that turning arm which is locked by the spring to the shaft will be brought to the left, to be engaged by a detent 43. There are obviously as many detents as there are turning arms 28. These detents are pivoted at 44, 44 to the horizontal portion 20 of one of the base strips 13. Against the detents and against projections 45 upon the said base strip bear springs 46, which tend to turn those ends of the detents which are provided with noses 47 in the direction of the arrow shown in Fig. 3 of the drawings. As soon as a turning arm is enn gaged by its corresponding detent, and the operator releases the treadle 41, the spring 23 will bring the shaft 2O and the block 33 attached thereto back into its operative position.

The operation of this device is as follows: The sheets of the music pamphlet are arranged upon the turning arms 28 in the order to be used, starting with the one at the extreme left. Normally the spring upon the bloc 39 locks that turning arm which is located at the eXtreme left to the shaft. If this arm is to be brought to the left-hand side of the shaft 20, or in other words if the sheet is to be turned, the outer end of the treadle 4l is pressed downward, whereby a turning movement will be given to the shaft 20, thereby bringing the extreme left turning arm to the right-hand side of the shaft 20 and into engagement with the inclined face of the nose 47 of its corresponding detent 43. A further rotation of the shaft 20 will ycause the turning arm to ride over the nose of said detent until it is brought into the position shown in Fig. 3 of the drawings when the spring 46 will cause the said arm to be locked in position by the said detent. `When now the treadle 41 is released, the turning arm is unlocked from the shaft, the spring 28 bringing the said shaft back to its normal position, thereby causing the spring 35 to engage the next turning arm in the series, after which the operation now described can be repeated.

In a music-leaf turner, the combination with a holding frame, of a shaft rotatably mounted thereon, a plurality of 'turning arms loosely mounted upon said shaft, said arms being disposed side by side in parallel relation, the lower ends of said arms being provided with outwardly bent portions which are located one within the other, a block fixedly attached to said shaft, a spring carried by said block having a bend adapted to receive the innermost in the series of the outwardly bent portions of said arms and to lock said arm to said shaft, means for rotating said shaft, means for unlocking from said shaft the turning arm locked thereto and holding the same in turned position when swung with said shaft, and a spring for returning said shaft to its normal position in which the bend of said first named spring engages the outwardly bent portion of the next turning arm in the series.

Signed at New York, in the county of New York and State of New York, this 27th day of August, A. D. 1912.

DAVID FUNK. lVitnesses SIGMUND HERZOG, S. BIRNBAUM.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

